Penicillin G also known as benzylpenicillin. It exert a bacteriocidal as well as a bacteriostatic effect on susceptible bacteria by interfering with the final stages of the synthesis of peptidoglycan, a substance in the bacterial cell wall. Penicillin G is a narrow spectrum antibiotic derived…

Polymyxin B Sulfate is a mixture of Polymyxin B1 and Polymyxin B2 Sulfate, obtained from Bacillus polymyxia strains. Polymyxin B inhibits gram-negative organisms in vitro and is also reported to inhibit Ca2+ dependent protein kinase C (PKC). It binds to and interferes with the permeability of the…